Senior Mainframe Systems Programmer - zOS Hardware
Ensono
| Company | Ensono |
| Category | Engineering |
| Location | Chennai |
| Remote | On-site (inferred) |
| Employment | Not stated |
| Level | Senior |
| Salary | Not stated by the employer |
| Posted | 22 Jul 2026 |
| Last verified | 30 Jul 2026 |
| Source | Employer career page (greenhouse) |
Description
ABOUT US
Ensono is a hybrid IT services provider that sees a world in transformation. We understand the world of business has become more complex, layered, and interdependent because we’re enabling the IT infrastructure for that transformation. Our clients are some of the most innovative and forward-thinking companies in the world and we help keep their businesses thriving. With nearly 50 years of experience, we optimize and modernize IT infrastructure by amplifying the power of mainframes and mid-range servers with the agility of cloud. Check us out at www.ensono.com.
Senior Mainframe Systems Programmer - Hardware
Position Summary
Provide premium Mainframe Hardware system programming support and services to Ensono mainframe clients.
The successful candidate will be responsible for configuration of mainframe hardware equipment such as HCD and IOCP. During new client migrations, the Systems Programmer will be a point person for configuring client environments within Ensono data centers to mimic existing client environment. Will serve as an escalation point for mainframe hardware issues such as failed Tape Drives, offline devices, and Call Home. The associate will perform software and hardware refreshes, customer migrations and daily customer support.
Key Areas of Focus for this Role
Fulfill customer service requests for mainframe customers in a timely manner as they pertain to Mainframe hardware components
Define (GEN) mainframe equipment to be connected to Mainframe CPU
Support existing mainframe equipment for functionality, break/fix, and upgrades
Be able to support multiple client hardware upgrades and data center migrations.
Provide primary support for reported problems related to Mainframe hardware and related software products
Evaluate client systems for migrating into Ensono data centers
Evaluate proposed solutions for supportability
Provide support on 24 x 7 x 365 basis across multiple time zones.
Provide key support for customer migration services (new customer transitions) as they pertain to Mainframe hardware and related OEM software products.
Provide primary support for reported problems related to Mainframe Hardware components
Research and evaluation of new software and hardware products, assisting team members and other areas with technical questions and problem resolution.
Communicate to both customer and management the status of issues at intervals during resolution process.
Maintain documentation of issue cause, action, and resolution in the designated problem tracking system.
Assist the assigned project manager in the migration of newly acquired customers such that all technical hurdles are addressed in a timely manner and do not impede the expected progress of the transition nor the targeted migration date.
In joint co-operation with the Disaster Recovery Services and other technical teams, successfully execute tasks associated with any given customer’s disaster recovery plans.
Aid and assist other mainframe teams as required to support them and our clients.
Adhere to a schedule that efficiently manages resources and allows timely implementations.
Follow ITSM change control procedures
What the Ideal Candidate Brings to this Role
Required Qualifications help to assure new Associates are set up for success in their role with Ensono. To be considered for this career opportunity, it is important that you meet all Required Qualifications. Candidates that may meet some, but not all, Other Qualifications are still encouraged to apply.
Required Qualifications
Bachelor’s degree required and/or equivalent work experience.
8+ years of professional experience in Mainframe Hardware Support working within a z/OS environment supporting Tape, DASD, CPU, and other mainframe hardware equipment.
Experience creating HCD and IOCP for zOS, zVM, and zVSE in a complex, geographically dispe
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